Interest-indicator



- No. 622,098. Patented Mar. 28, I899.

C. C. ADAMS.

lNTEREST INDICATOR.

(Application filed Oct. 5, 1898.) (No Model.) 4 $heets-Sheet I.

W/ TNE SSE S x W No. 622,098. Patented Mar. 28, I899. c. c. ADAMS.INTEREST INDICATOR.

(Application filed Oct. 5, 1898.)

(No Model.) 4 Sheets-Sheet 2.

E fl .7 Q 9 25 2' 22: a "i 1 v 2 2 2 2 1: a

1E1; J32 LZLIHIHW 7- m 1 1mm mum 1 o I 3 I.

I I0 52 1: J6 95 $2; I2: I? I8 I [8 n 20 fill cz/ 0 a/ 2% .24" 25 $51121 a n 7 II 8 9 IV 10 {Q 11 C231): I :3 1. M

W NE SE INVEN70R A TTOHNE Y8.

n: noams PETERS co, woraumo" WASP-HNGTON no.

Patented Mar. 23, I899. C. C. ADAMS.

' INTEREST mmcATnn.

(Application filed 006, 5, 1898.)

4 Sheeis-Sheef 3.

(No n'ud l.)

WITNESSES:

A TTOHNE Y8.

No. 622,098. Patented Mar. 28, I899.

C. C. ADAMS.

INTEREST INDICATOR.

(Application filed Oct. 5, 1898. (No Model.) 4 Sheets-8heet 4.

n In, IIIIIIIIIIIP'III- I IIIIIIIII'IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII/IIIIIIIII'IIwllallllllllllllllllllhs TTOHNEYS.

m2 Norms PETERS co, PHOTO-LITHQ, WASHINGTON, my C.

view of my machine.

UNITED STATES PATENT; OFFICE.

CHARLES C. ADAMS, OF CHARLOTTE, NORTH CAROLINA.

INTEREST-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 622,098, dated March28, 1899.

Application filed October 5, 1898. Serial No. 692,663. (No model.)

To all whont it may concern:

Be it known that I, OHARLEs C. ADAMS, a citizen of the United States,residing at Charlotte, inthe county of Mecklenburg and State of NorthCarolina, have invented a new and useful Improvement inInterest-Indicators, of which thefollowing is a specification.

My invention is an improvement in interest-indicators seeking to providea simple con struction whereby the depression of a key corresponding tothe principal will operate to bring to proper adjustment figuresrepresenting the interest upon such principal for a series of periods,so the operator can readily determine at a glance the amount of theinterest upon such sum for the desired period.

The invention consists in certain novel constructions and combinationsof parts, as will be hereinafter described, and pointed out in theclaims.

In the drawings, Figure l is a perspective Fig. 2 is a top plan viewthereof, partly broken away. Fig. 3 is a vertical longitudinal sectionof the machine.

Figs. 4 and 5 are cross-sections on about lines 4i 4 and 5 5 of Fig. 3.Fig. 6 shows a portion of the indicator-roller in side view and insection. Fig. 7 is a side view of a portion of the machine, showing theopposite side from that shown in Fig. 1; and Fig. 8 is a detail viewshowing a portion of one of the rods and the toothed wheel meshedtherewith.

The casing may be of any desired form or material, being in theconstruction shown made with its top having a flat portion at A and aninclined portion A, the former having openings a, which expose theindicatingrolls 13, presently described, and are provided with adjacentsuitably-inscribed lists of poriods ranging from days and months up toyears, these lists being close to the edge of the opening a to registerwith the list of amounts upon the indicatingroller exposed through suchopening. In the operation of the construction the indicating-roller isproperly turned to bring in register with the opening a the list ofamounts of interest upon the desired amount for the periods indicatedalongside the opening a, the amount of the calculated interestregistering with its eorrespending period alongside the opening a. Therollers I! are preferably made polygonal,

having upon their several faces listsof inter est amounts 0, each listbeing secured to the proper face I) of the roller B, and it is preferred to secure the said lists C removably to the roller (it may be byscrews C or other suitable manner) to permit. one set of lists C to beremoved and another applied. This is useful when it is desired to changethe indicator from, say, four per cent, which is the rate calculated inthe construction shown, to any other rate, such change onlynecessitating the removal of one set of lists from the roller 13 and theapplication of others at the desired rate of interest instead. To avoidany confusion, I usually inscribe on each list at C the rate of interestand the amount upon which interest is calculated to secure the resultbelow, the amount being, say, ten dollarsand the interest four per cent,as will be understood from the accompanying illustration. By thedescribed construction it will be seen that if the roller be turned tobring its interest-listsay, for instance, calculated at ten dollarssuchlist will indicate, in connection with the period-list on the case, theamount of interest for any desired period within the range of theindicator.

In order to operate the roller B to secure the desired result, I providemeans for turning it variable distances corresponding to the amount uponwhich interest is desired and so adjust such turning devices that thedevice corresponding to ten dollars will bring the ten-dollarinterest-list into register with the opening a, while the devicecorresponding to fifteen dollars will bring the fifteen-dollarinterestlist into such register, and so on throughout the apparatus. Toincrease the range'of the machine, I prefer to provide several rollers Band operating devices in con nection therewith; but as the devices usedin connection with the several rollers are alike the description of onemay answer for all. As shown in the drawings, the roller 13 is providedwith a long toothed wheel or roller D,

which is meshed by teeth upon key-rods E, which rise above the inclinedportion of the case and are provided with suitable heads or buttons E.The teeth upon these rods E or the extent of their movement, or both,are regulated according to the amount to which the particular keycorresponds, the one'dollar key being designed to move the roller B onestep that is, to bring its first interest-list into register with theopening athe two-dollar key to bring the second interest-list into suchregister, and so on; but it should be understood that the specificrelation between the interest-lists maybe varied, the object being toturn the roll B by each of its operating-keys the distance necessary tobring the corresponding interest-list into register with the opening a.The key-rods E are suitably guided in bars F and I and at the lower endof the teeth on each bar E, I provide a long tooth E which is struck bya long tooth D on the roller D as such roller is returned to cipherposition, such long tooth operating when so returned to push the bar Eup out of mesh with the roller D in position to be caught by aspring-latch G, operating on a projection g on the key-rod, such latch Goperating as a friction or spring latch to hold the key-rod up and yetpermit it to be pressed downward when desired to operate in the mannerdescribed.

To accurately adjust the movement of the key-rods, I provide adjustablestops I-I therefor in the form of screws turning through a suitablebearing II, supported in the casing and adapted to be adjusted toaccurately stop the key-rods in position to secure a registration of theproper interest-list with the opening a of the case.

In connection with each of the rollers D, I provide a toothed bar I,which meshes with the corresponding roller and is arranged at its lowerend for engagement by a bar J, the bar I being preferably provided atits lower end with a roller 1', to be engaged by the bar J. This bar Jis a part of the device for returning the rollers to the starting-pointand is supported on the swinging arms J, whose shaft J is providedoutside the machine with a suitable handle J by which the bar J may beoperated to move the toothed bar I up to return the roller B to thestarting-point. The bar J extends beneath the several bars I, and itwill be understood that as any one of the rollers 13 is operated by anyof its keys the toothed bar I by its meshing with the toothed roller I)will be moved downward a distance corresponding to the movement given tosaid roller D, so the said bar I when moved upward to its starting-pointwill properly readjust the roller D and its attached roller B to thestarting-point.

In connection with the openings a in the case and the period-listsalongside said openin g and the interest-lists on the rollers I preferto provide a sight-guide for convenience and accuracy in reading theamount. This sight-line consists of a frame K, which extends over thetop of the case above the openings a and is provided with a narrowopening K, sufficiently large to expose any one of the registeredperiod-lists and interest-lists. This frame K slides upon the case andis provided with a clamp K for binding it in any position to which itmay be set. In this con-- nection the plate K has at one end a dependingwing K which hooks at K under a bar L, extending alongside the case, theclampseetions K being pivoted at K to the wing K being meshed with eachother at K and having the cams K which in one position of theclamp-sections K bind against the rod L and lock the frame K in suchposition, while in the other adjustment of the clamp-sections K the camsK are freed from the bar L, and the frame K may be slid readily alongthe case of the machine.

I'Iaving'thus described my invention, what I claim, and desire to secureby Letters Patent, is-

'1. In an apparatus substantially as de scribed, the combination of theroller, the toothed roller or wheel connected therewith and having along tooth, the key-rods having teeth meshing with said toothed rollerand a long tooth cooperating with that of said roller, and arranged tobe engaged thereby to return the key-rod to starting-point and means fordetaining the key-rod at such point, as set forth.

2. The combination with the roller having the long-toothed wheel of theseveral key rods meshing with said rollers and the spring latchesengaging said rods and operating 5 a detent to retain the same out ofengagement with the toothed wheel, substantially as set forth.

3. An apparatus substantially as described comprising the casing havingsight-openings, and adjacent thereto the period or time lists, therollers beneath said openings and having the interest-lists registeringwith the periodlists of the casing, the toothed wheels extended from theroller, and the rods meshed with said toothed wheels, substantially asset forth.

4n. In an apparatus substantially as described, the combination with thecasing and the indicating devices of the sightguide frame movable overthe casing and registering with the indicating devices, and clamp-- ingmeans whereby the said sight-guide frame may be secured in any desiredadjustment, substantially as set forth.

5. In an apparatus, substantially as do scribed, the combination of thecase or frame, the indicating-rollers, and means for operat ing thesame, the sight-guide frame having at one end a hook-flange, a bar onthe case engaged by such flange and the clamp-sections pivoted to theflange and having the cams engaging the bar 011 the case, substantiallyas set forth.

6. In an apparatus substantially as described, the combination of theroller and its toothed wheel, the key bars toothed and meshing with saidwheel, the wheel-returning bar meshing with the toothed wheel, and thelever having a bar engaging with and operating said toothedreturning-bar, substantially as set forth.

7. The combination in an apparatus subbars whereby to operate the sameand having stantially as described, of the indicating-rollthe swingingarms, and the handle or lever, 10 ers having the toothed wheels, thekey-rods substantially as set forth. meshed with said Wheels, devicesfor holding 5 said rods normally out of mesh With said CHARLES ADAMSWheels, the toothed returning-bars meshed l/Vitnessesz with the toothedwheels, the bar extending GEO. W. BRYAN, beneath and engaging theseveral returning- M. P. PEGRAM;

